Functions

SEPARATION

Objective
The major function of Separation is to prevent two different granular materials from mixing under mechanical stress such as traffic. The characteristics of the input layer are therefore maintained.

Action
The separation geotextile:

separates the two different granular materials

Advantages of the use of the Separation range

economy of fill materials

reduced thickness of the input layer

possibility of using materials in situ

easy and rapid implementation

PROTECTION

Objective
The major function of protection is to prevent piercing of a geomembrane.

Action
Placed between a geomembrane and the supporting soil or protective layer, the geotextile

Absorbs local stress

Protects the geomembrane from puncturing

Advantages of the use of the Protection range

Economy of fill materials

Rep of using materials in situ

Easy and rapid implementation

FILTRATION

Objective
The major function of filtration is to prevent the destabilisation of the soil by internal flows.

Action
The geotextile filter has a dual action:

• It holds back the skeleton of the soil allowing the formation of a granular auto-filter
• It lets water through

Advantages of the use of the Filtration range

• economy of granular materials
• reduced thickness of the filter
• easy and low cost implementation
• continuity of the filtering structure in the case of deformation of the structure (possibility of seams)

ANTI-CRACKING

Objective
Because fatigue due to traffic and thermal and hydraulic changes are the obvious causes of fissuring, the major function of anti-fissuring is to increase the life span of the roadway.

Action
The bitumen-coated geotextile incorporated into the structure:

Slows down the appearance of fissuring

Maintains the impermeability of the roadway with respect to infiltration of surface water

Absorbs stress at the interface with the road surface

REINFORCEMENT

Objective
The major Function of Reinforcement is to guarantee the stability of structures.

Action
The soil-geosynthetic combination creates a tough and flexible composite material that can bear loads that the soil cannot support alone.

Advantages of the use of the Reinforcement range

Economy of fill materials by favouring the use of the site’s materials

Production of flexible structures, particularly adapted to compressible soils and sloping land